icuSources/i18n/nfrs.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 ******************************************************************************
   5 *   Copyright (C) 1997-2015, International Business Machines
   6 *   Corporation and others.  All Rights Reserved.
   7 ******************************************************************************
   8 *   file name:  nfrs.h
   9 *   encoding:   UTF-8
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 * Modification history
  14 * Date        Name      Comments
  15 * 10/11/2001  Doug      Ported from ICU4J
  16 */
  17
  18 #ifndef NFRS_H
  19 #define NFRS_H
  20
  21 #include "unicode/uobject.h"
  22 #include "unicode/rbnf.h"
  23
  24 #if U_HAVE_RBNF
  25
  26 #include "unicode/utypes.h"
  27 #include "unicode/umisc.h"
  28
  29 #include "nfrlist.h"
  30
  31 U_NAMESPACE_BEGIN
  32
  33 class NFRuleSet : public UMemory {
  34 public:
  35     NFRuleSet(RuleBasedNumberFormat *owner, UnicodeString* descriptions, int32_t index, UErrorCode& status);
  36     void parseRules(UnicodeString& rules, UErrorCode& status);
  37     void setNonNumericalRule(NFRule *rule);
  38     void setBestFractionRule(int32_t originalIndex, NFRule *newRule, UBool rememberRule);
  39     void makeIntoFractionRuleSet() { fIsFractionRuleSet = TRUE; }
  40
  41     ~NFRuleSet();
  42
  43     UBool operator==(const NFRuleSet& rhs) const;
  44     UBool operator!=(const NFRuleSet& rhs) const { return !operator==(rhs); }
  45
  46     UBool isPublic() const { return fIsPublic; }
  47
  48     UBool isParseable() const { return fIsParseable; }
  49
  50     UBool isDecimalFormatRuleParseable() const {
  51         UnicodeString numberingYear = UNICODE_STRING_SIMPLE("spellout-numbering-year");
  52         UnicodeString ordinal = UNICODE_STRING_SIMPLE("spellout-ordinal");
  53
  54         return ( name.indexOf(numberingYear) == -1 && name.indexOf(ordinal) == -1 );
  55     }
  56
  57     UBool isFractionRuleSet() const { return fIsFractionRuleSet; }
  58
  59     void  getName(UnicodeString& result) const { result.setTo(name); }
  60     UBool isNamed(const UnicodeString& _name) const { return this->name == _name; }
  61
  62     void  format(int64_t number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
  63     void  format(double number, UnicodeString& toAppendTo, int32_t pos, int32_t recursionCount, UErrorCode& status) const;
  64
  65     UBool parse(const UnicodeString& text, ParsePosition& pos, double upperBound, uint32_t nonNumericalExecutedRuleMask, Formattable& result, UBool lenient=FALSE) const;
  66
  67     void appendRules(UnicodeString& result) const; // toString
  68
  69     void setDecimalFormatSymbols(const DecimalFormatSymbols &newSymbols, UErrorCode& status);
  70
  71     const RuleBasedNumberFormat *getOwner() const { return owner; }
  72 private:
  73     const NFRule * findNormalRule(int64_t number) const;
  74     const NFRule * findDoubleRule(double number) const;
  75     const NFRule * findFractionRuleSetRule(double number) const;
  76
  77     friend class NFSubstitution;
  78
  79 private:
  80     UnicodeString name;
  81     NFRuleList rules;
  82     NFRule *nonNumericalRules[6];
  83     RuleBasedNumberFormat *owner;
  84     NFRuleList fractionRules;
  85     UBool fIsFractionRuleSet;
  86     UBool fIsPublic;
  87     UBool fIsParseable;
  88
  89     NFRuleSet(const NFRuleSet &other); // forbid copying of this class
  90     NFRuleSet &operator=(const NFRuleSet &other); // forbid copying of this class
  91 };
  92
  93 // utilities from old llong.h
  94 // convert mantissa portion of double to int64
  95 int64_t util64_fromDouble(double d);
  96
  97 // raise radix to the power exponent, only non-negative exponents
  98 // Arithmetic is performed in unsigned space since overflow in
  99 // signed space is undefined behavior.
 100 uint64_t util64_pow(uint32_t radix, uint16_t exponent);
 101
 102 // convert n to digit string in buffer, return length of string
 103 uint32_t util64_tou(int64_t n, UChar* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
 104
 105 #ifdef RBNF_DEBUG
 106 int64_t util64_utoi(const UChar* str, uint32_t radix = 10);
 107 uint32_t util64_toa(int64_t n, char* buffer, uint32_t buflen, uint32_t radix = 10, UBool raw = FALSE);
 108 int64_t util64_atoi(const char* str, uint32_t radix);
 109 #endif
 110
 111
 112 U_NAMESPACE_END
 113
 114 /* U_HAVE_RBNF */
 115 #endif
 116
 117 // NFRS_H
 118 #endif